Naslov
Copper Corrosion Inhibitors in Near Neutral Media

Autori
Otmačić, Helena ; Stupnišek-Lisac, Ema

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Congress Proceedings Eurocorr 2001 / Mazza. F. - Milano : Associazione Italiana di Metallurgia, 2001, 1-7

Skup
Eurocorr 2001 The European Corrosion Congress

Mjesto i datum
Riva del Garda, Italija, 30.09.2001. - 04.10.2001

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
corrosion inhibition; copper; sodium chloride; imidazole derivatives; potentiodynamic polarization; physisorptioncorrosion inhibition; copper; sodium chloride; imidazole derivatives; potentiodynamic polarization; physisorption
(corrosion inhibition; copper; sodium chloride; imidazole derivatives; potentiodynamic polarization; physisorption)

Sažetak
The efficiency of nontoxic imidazole derivatives as corrosion inhibitors for copper in sodium chloride solution is investigated. The influence of the structure and composition of imidazole derivatives molecule on their inhibiting properties is studied. The investigation was performed using electrochemical polarization methods (Tafel extrapolation method and polarization resistance determination) as well as weight loss measurements for different immersion times. The results have shown that imidazole derivatives with tolyl group have very good inhibiting properties, significantly higher then other investigated compounds. The values of free energies of adsorption, calculated from Freundlich isotherm, indicate that investigated imidazole derivatives physisorbe on copper surface.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA